Subversion Repositories openrisc_2011-10-31

/* Test for bitfield alignment in structs and unions.  */
/* { dg-do run { target pcc_bitfield_type_matters } }  */
/* { dg-options "-O2" }  */
 
extern void abort (void);
extern void exit (int);
 
typedef long la __attribute__((aligned (8)));
 
struct A
{
  char a;
  union UA
  {
    char x;
    la y : 6;
  } b;
  char c;
} a;
 
struct B
{
  char a;
  union UB
  {
    char x;
    long y : 6 __attribute__((aligned (8)));
  } b;
  char c;
} b;
 
struct C
{
  char a;
  struct UC
  {
    la y : 6;
  } b;
  char c;
} c;
 
struct D
{
  char a;
  struct UD
  {
    long y : 6 __attribute__((aligned (8)));
  } b;
  char c;
} d;
 
int main (void)
{
  if (sizeof (a) != sizeof (b))
    abort ();
  if (sizeof (a) != sizeof (c))
    abort ();
  if (sizeof (a) != sizeof (d))
    abort ();
  if ((&a.c - &a.a) != (&b.c - &b.a))
    abort ();
  if ((&a.c - &a.a) != (&c.c - &c.a))
    abort ();
  if ((&a.c - &a.a) != (&d.c - &d.a))
    abort ();
  exit (0);
}